Home / 6,620.93-9,134.29-3,786.79

Finding the Fourth Proportional to 6,620.93, 9,134.29 and 3,786.79

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Solution

The fourth proportional to 6,620.93, 9,134.29 and 3,786.79 is: 5,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.93 : 9,134.29 = 3,786.79 : x
  2. Step 2: Convert to fraction form
    6,620.93/9,134.29 = 3,786.79/x
  3. Step 3: Cross multiply
    6,620.93x = 9,134.29 × 3,786.79
  4. Step 4: Simplify right side
    6,620.93x = 34,589,634.86
  5. Step 5: Solve for x
    x = 34,589,634.86/6,620.93
  6. Step 6: Final answer
    x = 5,224.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.